AU2019348064B2

AU2019348064B2 - Method for Processing Terminal Device Capability Information, Terminal Device, and Network-Side Device

Info

Publication number: AU2019348064B2
Application number: AU2019348064A
Authority: AU
Inventors: Yue Ma; Yumin WU
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-09-27
Filing date: 2019-09-27
Publication date: 2022-08-04
Anticipated expiration: 2039-09-27
Also published as: KR20210060583A; RU2767521C1; JP7208370B2; AU2019348064A1; JP2022501963A; EP3860210A1; KR102589689B1; CA3114258A1; SG11202103174QA; US20210219128A1; WO2020063852A1; CN110958644B; EP3860210A4; CN110958644A

Abstract

Provided are a terminal device capability information processing method, a terminal device and a network side device. The method comprises: where the size of the terminal device capability information is greater than the maximum value of the size of PDCP SDU, sending a first message to a network side device, wherein the first message comprises first information, and the first information comprises information used for indicating that the size of the terminal device capability information is greater than the maximum value of the size of PDCP SDU.

Description

METHOD FOR PROCESSING TERMINAL DEVICE CAPABILITY INFORMATION, TERMINAL DEVICE, AND NETWORK-SIDE DEVICE CROSS-REFERENCE TO RELATED APPLICATIONS

[00011 This application claims priority to Chinese Patent Application No. 201811132639.X, filed in China on September 27, 2018, which is incorporated

herein by reference in its entirety.

TECHNICAL FIELD

[00021 This disclosure relates to the field of communications technologies, and in particular, to a method for processing terminal device capability information, a

terminal device, and a network-side device.

BACKGROUND

[00031 In a future mobile communications system (for example, a fifth

generation (5th generation, 5G) communications system), in order to better configure

an air interface connection for user equipment (User Equipment, UE) based on a

capability of the user equipment, a network side transmits capability request

information to the UE, and the UE reports capability information of the UE to the

network side based on the capability request information transmitted by the network

side, for example, reports the capability information of the UE by using a UE

capability information (namely, UE Capability Information) message. In an actual

situation, the capability information of the UE is usually transmitted by using a

packet data convergence protocol (Packet Data Convergence Protocol, PDCP)

service data unit (Service Data Unit, SDU). However, in the related art, when

capability information that needs to be reported by the UE exceeds a maximum size of the PDCP SDU, there is no related solution to processing related to the capability information of the UE.

SUMMARY

[00041 Embodiments of this disclosure provide a method for processing terminal device capability information, a terminal device, and a network-side device, so as to

provide a processing manner related to capability information of UE when a size of

capability information that needs to be reported by the UE exceeds a maximum size

of a PDCP SDU, thereby standardizing the processing manner related to the

capability information of the UE when the size of the capability information that

needs to be reported by the UE exceeds the maximum size of the PDCP SDU.

[00051 In order to resolve the foregoing technical problem, this disclosure is

implemented as follows:

[00061 According to a first aspect, an embodiment of this disclosure provides a

method for processing terminal device capability information, applied to a terminal

device. The method includes:

transmitting a first message to a network-side device when a size of

capability information of the terminal device is greater than a maximum size of a

PDCPSDU,

the first message includes first information, and the first information

includes information used for indicating that the size of the capability information of

the terminal device is greater than the maximum size of the PDCP SDU.

[00071 According to a second aspect, an embodiment of this disclosure provides

a method for processing terminal device capability information, applied to a

network-side device. The method includes:

receiving a first message transmitted by a terminal device, where

the first message includes first information, and the first information

includes information used for indicating that a size of capability information of the

terminal device is greater than a maximum size of a PDCP SDU.

[00081 According to a third aspect, an embodiment of this disclosure further provides a terminal device. The terminal device includes: a transmitting module, configured to transmit a first message to a network-side device when a size of capability information of the terminal device is greater than a maximum size of a PDCP SDU, where the first message includes first information, and the first information includes information used for indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU.

[00091 According to a fourth aspect, an embodiment of this disclosure further provides a network-side device. The network-side device includes: a first receiving module, configured to receive a first message transmitted by a terminal device; and the first message includes first information, and the first information includes information used for indicating that a size of capability information of the terminal device is greater than a maximum size of a PDCP SDU.

[00101 According to a fifth aspect, an embodiment of this disclosure further provides a terminal device, including a processor, a memory, and a program stored in the memory and capable of running on the processor, where when the program is executed by the processor, the steps of the method for processing terminal device capability information according to the first aspect are implemented.

[0011] According to a sixth aspect, an embodiment of this disclosure further provides a network-side device, including a processor, a memory, and a program stored in the memory and capable of running on the processor, where when the program is executed by the processor, the steps of the method for processing terminal device capability information according to the second aspect are implemented.

[00121 According to a seventh aspect, an embodiment of this disclosure further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for processing terminal device capability information according to the first aspect are implemented, or the steps of the method for processing terminal device capability information according to the second aspect are implemented.

[00131 In the embodiments of this disclosure, the first message is transmitted to the network-side device when the size of the capability information of the terminal

device is greater than the maximum size of the PDCP SDU, where the first message

includes the first information, and the first information includes the information used

for indicating that the size of the capability information of the terminal device is

greater than the maximum size of the PDCP SDU, so that when the size of the

capability information that needs to be reported by the UE exceeds the maximum

size of the PDCP SDU, the network-side device is indicated that the size of the

capability information of the terminal device is greater than the maximum size of the

PDCP SDU, thereby standardizing the processing manner related to the capability

information of the UE when the size of the capability information that needs to be

reported by the UE exceeds the maximum size of the PDCP SDU.

BRIEF DESCRIPTION OF DRAWINGS

[0014] To describe the technical solutions in the embodiments of this disclosure

more clearly, the following briefly introduces the accompanying drawings required

for describing the embodiments of this disclosure. Apparently, the accompanying

drawings in the following description show merely some embodiments of this

disclosure, and a person of ordinary skill in the art may still derive other drawings

from these accompanying drawings without creative efforts.

[00151 FIG. 1 is a flowchart of initial access and UE capability reporting

provided in the related art;

[0016] FIG. 2 is a structural diagram of a network system applicable to an

embodiment of this disclosure;

[00171 FIG. 3 is a flowchart of a method for processing terminal device

capability information according to an embodiment of this disclosure;

[00181 FIG. 4 is a flowchart of another method for processing terminal device capability information according to an embodiment of this disclosure;

[00191 FIG. 5 is a flowchart of another method for processing terminal device capability information according to an embodiment of this disclosure;

[00201 FIG. 6 is a flowchart of another method for processing terminal device capability information according to an embodiment of this disclosure;

[00211 FIG. 7 is a flowchart of another method for processing terminal device capability information according to an embodiment of this disclosure;

[00221 FIG. 8 is a structural diagram of a terminal device according to an embodiment of this disclosure;

[00231 FIG. 9 is a structural diagram of a network-side device according to an embodiment of this disclosure;

[0024] FIG. 10 is a structural diagram of another terminal device according to an

embodiment of this disclosure; and

[00251 FIG. 11 is a structural diagram of another network-side device according

to an embodiment of this disclosure.

DESCRIPTION OF EMBODIMENTS

[00261 The following clearly and completely describes the technical solutions in

the embodiments of this disclosure with reference to the accompanying drawings in

the embodiments of this disclosure. Apparently, the described embodiments are some

but not all of the embodiments of this disclosure. All other embodiments obtained by

a person of ordinary skill in the art based on the embodiments of this disclosure

without creative efforts shall fall within the protection scope of this disclosure.

[00271 For ease of understanding, the following describes some terms involved

in the embodiments of this disclosure:

[00281 Initial access and UE capability reporting:

[00291 Referring to FIG. 1, the initial access and UE capability reporting may

include the following steps.

[00301 Step 101: UE initiates a connection establishment process, initiates a random access process, and transmits an Msgl, where the Msgl carries a preamble

(namely, preamble).

[00311 Step 102: A network-side device transmits, based on the Msgl transmitted by the UE, an Msg2 carrying a random access response (Random Access

Response, RAR for short), where the Msg2 further carries an uplink resource used

for transmitting an Msg3.

[00321 Step 103: The UE transmits the Msg3 based on the resource allocated in the Msg2.

[0033] For example, an RRC setup request (namely, RRCSetupRequest)

message in a 5G system or an RRC connection request (namely, RRCConnectionRequest) message of a fourth generation (4th generation, 4G) long

term evolution (Long Term Evolution, LTE) system.

[00341 Step 104: The network-side device transmits an Msg4 of the random

access process to the UE based on the Msg3 transmitted by the UE.

[00351 Specifically, after contention resolution is successful, the UE establishes a

corresponding RRC connection. For example, the network-side device transmits a

contention resolution message to the UE. In addition, for the 5G system, the Msg4

carries an RRC setup (namely, RRCSetup) message; for the 4G LTE system, the

Msg4 carries an RRC connection setup (namely, RRCConnectionSetup) message.

[0036] Step 105: After executing a connection configuration message delivered

by the network-side device, the UE feeds back a connection configuration complete

message to the network side.

[0037] For example, in the 5G system, the connection configuration complete

message may be an RRC setup complete (namely, RRCSetupComplete) message; in

the 4G LTE system, the connection configuration complete message may be an RRC

connection setup complete (namely, RRCConnectionSetupComplete) message.

[00381 Step 106: The network-side device transmits capability request information to the UE.

[00391 In this step, in order to better configure an air interface connection for the UE based on the capability of the UE, the network-side device transmits the capability request information to the UE, for example, a UE capability enquiry (namely, UECapabilityEnquiry) message.

[00401 Step 107: The UE reports capability information of the UE to the network side based on the request information of the network side.

[00411 For example, the capability information of the UE is reported by using a UE capability information (namely, UECapabilitynformation) message.

[00421 Description of a size of the packet data convergence protocol (Packet Data Convergence Protocol, PDCP) packet:

[00431 For example, in the 4G system, a maximum packet size value of a PDCP service data unit (Service Data Unit, SDU) at the PDCP layer is 8188 bytes. In the 5G system, a maximum packet size value of a PDCP SDU at the PDCP layer is 9000 bytes.

[00441 RRC message segmentation:

[00451 When a size of an RRC message exceeds the maximum size of the PDCP SDU, the RRC message needs to be divided into a plurality of small segments and transmitted to the PDCP layer for transmission, and a size of each segment does not exceed the maximum size of the PDCP SDU.

[00461 An embodiment of this disclosure provides a method for processing terminal device capability information. Referring to FIG. 2, FIG. 2 is a structural diagram of a network system applicable to an embodiment of this disclosure. As shown in FIG. 2, the network system includes a terminal device 11 and a network-side device 12. The terminal device 11 may be a terminal device-side device such as a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA for short), a mobile Internet device (Mobile Internet Device, MID), or a wearable device (Wearable Device). It should be noted that a specific type of the terminal device 11 is not limited in the embodiments of this disclosure. The network-side device 12 may be a base station, such as a macro base station, an LTE eNB, a 5G NR NB, or a gNB. The network-side device 12 may also be a small cell, for example, a small cell such as a low power node (Low Power Node, LPN) pico or femto, or the network-side device 12 may be an access point (Access Point, AP). The base station may alternatively be a network node formed by a central unit (Central

Unit, CU) and a plurality of transmission reception points (Transmission Reception

Point, TRP) managed and controlled by the central unit. It should be noted that a

specific type of the network-side device 12 is not limited in the embodiments of this

disclosure.

[00471 In this embodiment of this disclosure, when the terminal device 11 determines that a size of capability information of the terminal device that needs to

be reported is greater than a maximum size of a PDCP SDU, the terminal device 11

may transmit a first message including at least first information to the network-side

device 12, where the first information includes information used for indicating that

the size of the capability information of the terminal device is greater than the

maximum size of the PDCP SDU. Optionally, the first information may further

include at least one of the size of the capability information of the terminal device

and information used for indicating that the terminal device supports radio resource

control RRC message segmentation.

[00481 Optionally, when determining that the size of the capability information of the terminal device that needs to be reported is greater than the maximum size of

the PDCP SDU, the terminal device 11 may alternatively transmit the capability

information of the terminal device by using at least one PDCP SDU based on a

reporting manner. Capability information carried by any one of the at least one

PDCP SDU is partial capability information of the terminal device.

[00491 For example, if the reporting manner indicates to report all capability

information of the terminal device in a radio resource control RRC message

segmentation manner, the terminal device 11 may perform RRC message

segmentation on the capability information of the terminal device for reporting. If

the reporting manner indicates to report partial capability information of the terminal device, the terminal device 11 may directly report the partial capability information of the terminal device.

[00501 It should be noted that the reporting manner may be predefined by a protocol or configured by the network-side device.

[00511 Optionally, the network-side device 12 may transmit, to the terminal device 11, a second message including at least second information, where the second

information is used to indicate the reporting manner.

[00521 Optionally, after receiving the first information, the network-side device 12 may transmit, to the terminal device 11 based on the first information, the second

message including at least the second information.

[00531 For example, when the first information includes the information used for indicating that the terminal device supports radio resource control RRC message

segmentation, the terminal device 11 is indicated to upload all the capability

information of the terminal device in the RRC message segmentation manner. If the

first information does not include the information used for indicating that the

terminal device supports radio resource control RRC message segmentation, or

includes information used for indicating that the terminal device does not support

RRC message segmentation, the terminal device 11 is indicated to report the partial

capability information.

[00541 After receiving the second message, the terminal device 11 may report

the capability information based on the reporting manner indicated by the

network-side device 12.

[00551 It should be noted that the first message and the second message may be existing messages in initial access and UE capability reporting processes in the

related art, or may be additionally transmitted messages, which are not limited in this

embodiment of this disclosure.

[00561 In this embodiment of this disclosure, the first message is transmitted to

the network-side device when the size of the capability information of the terminal

includes the first information, and the first information includes the information used for indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, so that when the size of the capability information that needs to be reported by the UE exceeds the maximum size of the PDCP SDU, the network-side device is indicated that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, thereby standardizing the processing manner related to the capability information of the UE when the size of the capability information that needs to be reported by the UE exceeds the maximum size of the PDCP SDU.

[00571 An embodiment of this disclosure provides a method for processing terminal device capability information, applied to a terminal device. Referring to FIG. 3, FIG. 3 is a flowchart of a method for processing terminal device capability information according to an embodiment of this disclosure. As shown in FIG. 3, the method includes the following steps.

[00581 Step 301: Transmit a first message to a network-side device when a size of capability information of the terminal device is greater than a maximum size of a PDCPSDU.

[00591 The first message includes first information, and the first information includes information used for indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU.

[00601 In this embodiment of this disclosure, the information used for indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU may be information explicitly indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, for example, using a preset indication bit to indicate that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU. Alternatively, the information may be information implicitly indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, for example, the size of the capability information of the terminal device, or a difference between the size of the capability information of the terminal device and the maximum size of the PDCP SDU. Upon receiving the information, the network-side device confirms that the size of the capability information of the terminal device is greater than the maximum size of the PDCPSDU.

[00611 Specifically, when the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, the terminal device transmits, to the network-side device, the first message carrying the first information, where the first information includes at least the information used for indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, so as to notify the network-side device that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, and to facilitate corresponding processing of the network-side device, for example, indicating a reporting manner of the capability information of the terminal device.

[00621 It should be noted that the first message may be an existing message in initial access and UE capability reporting processes in the related art, or may be an additionally transmitted message (namely, an auxiliary message), which is not limited in this embodiment of this disclosure.

[0063] Optionally, the first information may further include at least one of the following: the size of the capability information of the terminal device; and information used for indicating that the terminal device supports RRC message segmentation.

[00641 In this embodiment of this disclosure, the size of the capability information of the terminal device may be a size of total capability information that needs to be reported by the terminal device.

[00651 Optionally, the network-side device may configure, based on the first information, a manner of reporting the capability information by the terminal device. For example, when the first information includes the size of the capability information of the terminal device, the network-side device may configure an RRC message segmentation parameter such as a segment length based on the size of the capability information of the terminal device. When the first information includes the information used for indicating that the terminal device supports RRC message segmentation, the terminal device is indicated to report the capability information of the terminal device in an RRC message segmentation manner.

[00661 According to the method for processing terminal device capability information provided in this embodiment of this disclosure, the first message is transmitted to the network-side device when the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, where the first message includes the first information, and the first information includes the information used for indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, so that when the size of the capability information that needs to be reported by the UE exceeds the maximum size of the PDCP SDU, the network-side device is indicated that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, thereby facilitating corresponding processing of the network-side device, and standardizing the processing manner of the capability information of the UE when the size of the capability information that needs to be reported by the UE exceeds the maximum size of the PDCP SDU.

[00671 Optionally, the method may further include: transmitting the capability information of the terminal device by using at least one PDCP SDU based on a reporting manner.

[00681 Capability information carried by any one of the at least one PDCP SDU is partial capability information of the terminal device.

[0069] In this embodiment of this disclosure, when the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, all the capability information of the terminal device cannot be transmitted by using one PDCP SDU. In this case, the capability information of the terminal device may be transmitted by using at least one PDCP SDU based on the reporting manner, where the capability information carried by any one of the at least one PDCP SDU is partial capability information of the terminal device, so as to ensure that the capability information of the terminal device can still be reported when the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU.

[00701 For example, if the reporting manner indicates to report all the capability information of the terminal device in the radio resource control (Radio Resource Control, RRC) message segmentation manner, the terminal device may perform RRC message segmentation on the capability information of the terminal device and then report the capability information of the terminal device. If the reporting manner indicates to report the partial capability information of the terminal device, the terminal device may directly report the partial capability information of the terminal device.

[00711 Optionally, the reporting manner may be predefined by a protocol or configured by the network side.

[00721 It should be noted that the reporting manner of the capability information of the terminal device when the size of the capability information of the terminal device is less than or equal to the maximum size of the PDCP SDU is not limited in this embodiment of this disclosure. For example, the capability information of the terminal device may be reported in a terminal device capability reporting manner in the related art.

[00731 It should be noted that the capability information of the terminal device may be capability information that needs to be reported by the terminal device. The partial capability information of the terminal device may be partial capability information in the capability information that needs to be reported by the terminal device. All the capability information of the terminal device may be all capability information in the capability information that needs to be reported by the terminal device.

[00741 In this embodiment of this disclosure, when the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, the capability information of the terminal device is transmitted by using the at least one PDCP SDU based on the reporting manner, where the capability information carried in any one of the at least one PDCP SDU is the partial capability information of the terminal device. In this way, the capability information of the UE can be reported when the size of the capability information to be reported by the UE exceeds the maximum size of the PDCP SDU, thereby ensuring that the capability information of the terminal device can still be reported when the size of the capability information of the terminal device is greater than the maximum size of the

PDCP SDU, and further improving flexibility in reporting the capability information

of the UE.

[00751 Optionally, the reporting manner may include:

reporting all capability information of the terminal device in a radio

resource control RRC message segmentation manner; or

reporting partial capability information of the terminal device.

[0076] In this embodiment of this disclosure, the reporting all the capability information of the terminal device in the radio resource control RRC message

segmentation manner may be performing RRC message segmentation on all the

capability information of the terminal device and transmitting each segment by using

one PDCP SDU, that is, transmitting partial capability information of the terminal

device in each PDCP SDU.

[00771 In this embodiment of this disclosure, all the capability information of the terminal device is reported in the radio resource control RRC message segmentation

manner when the size of the capability information of the terminal device is greater

than the maximum size of the PDCP SDU, thereby ensuring integrity of the reported

capability information of the terminal device, and facilitating more accurate resource

configuration based on the capability information of the terminal device by the

network-side device.

[00781 The reported partial capability information of the terminal device is also a

part of the capability information of the terminal device. For example, a part of the

capability information whose size is less than or equal to the maximum size of the

PDCP SDU may be obtained from the capability information of the terminal device

for reporting. It should be noted that in this embodiment of this disclosure, the partial capability information may be randomly obtained from the capability information of the terminal device for reporting; or the partial capability information may be selected based on an indication of the network-side device from the capability information of the terminal device for reporting; or the like. This is not limited in this embodiment of this disclosure.

[00791 In this embodiment of this disclosure, reporting the partial capability information of the terminal device when the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU can improve the efficiency of capability information reporting.

[0080] Optionally, before the transmitting the capability information of the terminal device by using the at least one PDCP SDU based on the reporting manner, the method further includes: receiving a second message transmitted by the network-side device, where the second message includes second information, and the second information is used to indicate the reporting manner.

[00811 In this embodiment of this disclosure, after receiving the first message, the network-side device may transmit, to the terminal device, a second message carrying at least second information, where the second information is used to indicate the reporting manner.

[00821 It should be noted that when the reporting manner is using the RRC message segmentation manner to report all the capability information of the terminal device, the second information may further include an RRC message segmentation configuration parameter, for example, information such as a segment number and a segment length. When the reporting manner is reporting the partial capability information of the terminal device, the second information may further include indication information used for indicating the partial capability information that needs to be reported.

[00831 It should be noted that the second message may be an existing message in initial access and UE capability reporting processes in the related art, or may be an additionally transmitted message, which is not limited in this embodiment of this disclosure.

[00841 In this embodiment of this disclosure, the reporting manner is indicated by the network-side device, thereby improving the flexibility of controlling capability information reporting of the terminal device.

[00851 Optionally, the second message further carries capability request information.

[00861 In this embodiment of this disclosure, the second message further carries the capability request information, for example, the second message is a UECapabilityEnquiry message shown in FIG. 1

[00871 In this embodiment of this disclosure, the second information is transmitted by using an existing message in the initial access and UE capability reporting processes in the related art, thereby saving signaling overheads.

[00881 Optionally, the first message is a connection configuration complete message; or the first message is a message that is transmitted in response to capability request information transmitted by the network-side device; or the first message is an auxiliary message transmitted by the terminal device to the network-side device.

[00891 In this embodiment of this disclosure, the first message may be a connection configuration complete message, such as an RRCSetupComplete message shown in FIG. 1. The first message may alternatively be a message transmitted in response to the capability request information transmitted by the network-side device, for example, a UECapabilitylnformation message shown in FIG. 1.

[00901 In this embodiment of this disclosure, the first information is transmitted by using an existing message in the initial access and UE capability reporting processes in the related art, thereby saving signaling overheads.

[0091] Optionally, the first message may alternatively be an auxiliary message transmitted by the terminal device to the network-side device, that is, a message additionally transmitted relative to the existing message. In this embodiment of this disclosure, the first information is carried in the auxiliary message, thereby improving the flexibility of transmitting the first information.

[00921 Optionally, when the first message is a message that is transmitted in response to the capability request information transmitted by the network-side device, the first message further carries the partial capability information of the terminal device.

[00931 In this embodiment of this disclosure, when receiving the capability request information transmitted by the network-side device, the terminal device may transmit the first information and the partial capability information of the terminal device to the network-side device, thereby improving the efficiency of capability information reporting.

[0094] For example, referring to FIG. 1, when the UECapabilityEnquiry message transmitted by the network-side device is received, a UECapabilitynformation message is transmitted to the network-side device, where the UECapabilitynformation message carries the first information and the partial capability information of the terminal device.

[0095] Optionally, when the first message also carries the partial capability information of the terminal device, the first information may further include at least one of the following: the size of the capability information of the terminal device; information used for indicating that the terminal device supports radio resource control RRC message segmentation; information used for indicating that the terminal device has remaining capability information that has not been reported; and a size of the remaining capability information, where the remaining capability information is capability information other than the reported capability information in the capability information of the terminal device.

[0096] In this embodiment of this disclosure, the size of the capability information of the terminal device may be a size of total capability information that needs to be reported by the terminal device. The size of the remaining capability information is also a difference between the size of all the capability information that needs to be reported by the terminal device and a size of already-reported capability information. For example, if the size of the total capability information is 10000 bytes and the UE has reported 9000-byte capability information, the remaining

1000-byte capability information has not been reported by the UE.

[00971 It should be noted that when the first message further carries the partial capability information of the terminal device, the reporting the partial capability

information of the terminal device may be reporting the remaining capability

information of the terminal device, where the remaining capability information is

capability information other than the already-reported capability information in the

capability information of the terminal device. The reporting all the capability

information of the terminal device in the RRC message segmentation manner may be

performing RRC message segmentation on the remaining capability information of

the terminal device for uploading.

[00981 An embodiment of this disclosure provides a method for processing terminal device capability information, applied to a network-side device. Referring

to FIG. 4, FIG. 4 is a flowchart of another method for processing terminal device

capability information according to an embodiment of this disclosure. As shown in

FIG. 4, the method includes the following steps.

[0099] Step 401: Receive a first message transmitted by a terminal device.

[00100] The first message includes first information, and the first information includes information used for indicating that a size of capability information of the

terminal device is greater than a maximum size of a PDCP SDU.

[00101] In this embodiment of this disclosure, the information used for indicating

that the size of the capability information of the terminal device is greater than the

maximum size of the PDCP SDU may be information explicitly indicating that the

size of the capability information of the terminal device is greater than the maximum

size of the PDCP SDU, for example, using a preset indication bit to indicate that the

size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU. Alternatively, the information may be information implicitly indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, for example, the size of the capability information of the terminal device, or a difference between the size of the capability information of the terminal device and the maximum size of the PDCP SDU. Upon receiving the information, the network-side device confirms that the size of the capability information of the terminal device is greater than the maximum size of the

PDCPSDU.

[00102] Specifically, when the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, the terminal device may

transmit, to the network-side device, the first message carrying the first information,

where the first information includes at least the information used for indicating that

maximum size of the PDCP SDU, so as to notify the network-side device that the

size of the PDCP SDU, and to facilitate corresponding processing of the

network-side device, for example, indicating a reporting manner of the capability

information of the terminal device.

[00103] It should be noted that the first message may be an existing message in initial access and UE capability reporting processes in the related art, or may be an

additionally transmitted message (namely, an auxiliary message), which is not

limited in this embodiment of this disclosure.

[00104] Optionally, the first information may further include at least one of the

following:

the size of the capability information of the terminal device; and

information used for indicating that the terminal device supports RRC

message segmentation.

[00105] In this embodiment of this disclosure, the size of the capability

information of the terminal device may be a size of total capability information that

needs to be reported by the terminal device.

[00106] Optionally, the network-side device may configure, based on the first information, a manner of reporting the capability information by the terminal device. For example, when the first information includes the size of the capability information of the terminal device, the network-side device may configure an RRC message segmentation parameter such as a segment length based on the size of the capability information of the terminal device. When the first information includes the information used for indicating that the terminal device supports RRC message segmentation, the terminal device is indicated to report the capability information of the terminal device in an RRC message segmentation manner.

[00107] According to the method for processing terminal device capability information provided in this embodiment of this disclosure, the first message transmitted by the terminal device is received, where the first message includes the first information, and the first information includes the information used for indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, so that when the size of the capability information that needs to be reported by the UE exceeds the maximum size of the PDCP SDU, the network-side device is indicated that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, thereby facilitating corresponding processing of the network-side device, and standardizing the processing manner of the capability information of the UE when the size of the capability information that needs to be reported by the UE exceeds the maximum size of the PDCP SDU.

[00108] Optionally, the method may further include: receiving capability information of the terminal device that is transmitted by the terminal device by using at least one PDCP SDU based on a reporting manner.

[00109] Capability information carried by any one of the at least one PDCP SDU is partial capability information of the terminal device.

[00110] In this embodiment of this disclosure, the network-side device may receive the capability information of the terminal device that is transmitted by the terminal device by using at least one PDCP SDU based on the reporting manner, where the capability information carried by any one of the at least one PDCP SDU is partial capability information of the terminal device, so as to ensure that the capability information of the terminal device can still be reported when the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU.

[00111] For example, if the reporting manner indicates to report all the capability information of the terminal device in the RRC message segmentation manner, RRC

message segmentation may be performed on the capability information of the

terminal device for reporting. If the reporting manner indicates to report partial

capability information of the terminal device, the partial capability information of

the terminal device may be directly reported.

[00112] Optionally, the reporting manner may be predefined by a protocol or

configured by the network side.

[00113] It should be noted that the capability information of the terminal device

may be capability information that needs to be reported by the terminal device. The

partial capability information of the terminal device may be partial capability

information in the capability information that needs to be reported by the terminal

device. All the capability information of the terminal device may be all capability

device.

[00114] In this embodiment of this disclosure, the capability information of the

terminal device that is transmitted by the terminal device by using the at least one

PDCP SDU based on the reporting manner is received, where the capability

information carried in any one of the at least one PDCP SDU is the partial capability

information of the terminal device. In this way, the capability information of the UE

can be transmitted when the capability information that needs to be reported by the

UE exceeds the maximum size of the PDCP SDU, thereby improving flexibility of

UE capability information transmission.

[00115] Optionally, the reporting manner includes:

reporting all capability information of the terminal device in a radio resource control RRC message segmentation manner; or reporting partial capability information of the terminal device.

[00116] In this embodiment of this disclosure, the reporting all the capability information of the terminal device in the radio resource control RRC message

segmentation manner may be performing RRC message segmentation on all the

device in each PDCP SDU.

[00117] In this embodiment of this disclosure, all the capability information of the terminal device is reported in the radio resource control RRC message segmentation

configuration based on the capability information of the terminal device by the

network-side device.

[00118] The reported partial capability information of the terminal device is also a

PDCP SDU may be obtained from the capability information of the terminal device

for reporting. It should be noted that in this embodiment of this disclosure, the partial

capability information may be randomly obtained from the capability information of

the terminal device for reporting; or the partial capability information may be

selected based on an indication of the network-side device from the capability

information of the terminal device for reporting; or the like. This is not limited in

this embodiment of this disclosure.

[00119] In this embodiment of this disclosure, reporting the partial capability

information of the terminal device when the size of the capability information of the

terminal device is greater than the maximum size of the PDCP SDU can improve the

efficiency of capability information reporting.

[00120] Optionally, before the receiving the capability information of the terminal device that is transmitted by the terminal device by using the at least one PDCP SDU

based on the reporting manner, the method further includes:

transmitting a second message to the terminal device, where the second

message includes second information, and the second information is used to indicate

the reporting manner.

[00121] In this embodiment of this disclosure, after receiving the first message, the network-side device may transmit, to the terminal device, a second message

carrying at least second information, where the second information is used to

indicate the reporting manner.

[00122] It should be noted that when the reporting manner is using the RRC message segmentation manner to report all the capability information of the terminal

device, the second information may further include an RRC message segmentation

configuration parameter, for example, information such as a segment number and a

segment length. When the reporting manner is reporting the partial capability

information of the terminal device, the second information may further include

indication information used for indicating the partial capability information that

needs to be reported.

[00123] It should be noted that the second message may be an existing message in initial access and UE capability reporting processes in the related art, or may be an

additionally transmitted message, which is not limited in this embodiment of this

disclosure.

[00124] In this embodiment of this disclosure, the reporting manner is indicated

by the network-side device, thereby improving the flexibility of controlling

capability information reporting of the terminal device.

[00125] Optionally, the second message further carries capability request information.

[00126] In this embodiment of this disclosure, the second message further carries

the capability request information, for example, the second message is a

UECapabilityEnquiry message shown in FIG. 1

[00127] In this embodiment of this disclosure, the second information is transmitted by using an existing message in the initial access and UE capability reporting processes in the related art, thereby saving signaling overheads.

[00128] Optionally, the first message is a connection configuration complete message; or the first message is an auxiliary message transmitted by the terminal device to the network-side device.

[00129] In this embodiment of this disclosure, the first message may be a connection configuration complete message, such as an RRCSetupComplete message shown in FIG. 1.

[00130] In this embodiment of this disclosure, the first information is transmitted by using an existing message in the initial access and UE capability reporting processes in the related art, thereby saving signaling overheads.

[00131] Optionally, the first message may alternatively be an auxiliary message transmitted by the terminal device to the network-side device, that is, a message additionally transmitted relative to the existing message. In this embodiment of this disclosure, the first information is carried in the auxiliary message, thereby improving the flexibility of transmitting the first information.

[00132] Optionally, before the receiving the first message transmitted by the terminal device, the method further includes: transmitting capability request information to the terminal device.

[00133] The first message is a message transmitted in response to the capability request information.

[00134] In this embodiment of this disclosure, the first message may be a message transmitted in response to the capability request information transmitted by the network-side device, for example, a UECapabilitylnformation message shown in FIG. 1.

[00135] In this embodiment of this disclosure, the first information is transmitted by using an existing message in the initial access and UE capability reporting processes in the related art, thereby saving signaling overheads.

[00136] Optionally, the first message further carries partial capability information of the terminal device.

[00137] In this embodiment of this disclosure, when receiving the capability request information transmitted by the network-side device, the terminal device may

transmit the first information and the partial capability information of the terminal

device to the network-side device, thereby improving the efficiency of capability

information reporting.

[00138] For example, referring to FIG. 1, when the UECapabilityEnquiry message transmitted by the network-side device is received, a UECapabilitynformation

message is transmitted to the network-side device, where the

UECapabilitynformation message carries the first information and the partial

capability information of the terminal device.

[00139] Optionally, when the first message also carries the partial capability information of the terminal device, the first information includes at least one of the

following:

the size of the capability information of the terminal device;

information used for indicating that the terminal device supports radio

resource control RRC message segmentation;

information used for indicating that the terminal device has remaining

capability information that has not been reported; and

a size of the remaining capability information, where the remaining

capability information is capability information other than the reported capability

information in the capability information of the terminal device.

[00140] In this embodiment of this disclosure, the size of the capability

needs to be reported by the terminal device. The size of the remaining capability

information is also a difference between the size of all the capability information that

needs to be reported by the terminal device and a size of already-reported capability

information. For example, if the size of the total capability information is 10000 bytes and the UE has reported 9000-byte capability information, the remaining

1000-byte capability information has not been reported by the UE.

[00141] It should be noted that when the first message further carries the partial capability information of the terminal device, the reporting the partial capability

information of the terminal device may be reporting the remaining capability

capability information of the terminal device. The reporting all the capability

performing RRC message segmentation on the remaining capability information of

the terminal device for uploading.

[00142] The following uses specific examples to describe the method for

processing terminal device capability information provided in this embodiment of

this disclosure.

[00143] Example 1: Indication information that the capability information is

excessively large is reported by using a connection configuration completion

message.

[00144] Referring to FIG. 5, the method for processing terminal device capability

information provided in this embodiment of this disclosure includes the following

steps:

[00145] Step 501: UE initiates a connection establishment process, initiates a

random access process, and transmits an Msgl, where the Msgl carries a preamble

(namely, preamble).

[00146] Step 502: A network-side device transmits, based on the Msgl

transmitted by the UE, an Msg2 carrying a random access response (namely, RAR),

where the Msg2 further carries an uplink resource used for transmitting an Msg3.

[00147] Step 503: The UE transmits the Msg3 based on the resource allocated in

the Msg2.

[00148] This step is the same as the foregoing step 103.

[00149] Step 504: The network-side device transmits an Msg4 of the random access process to the UE based on the Msg3 transmitted by the UE.

[00150] This step is the same as the foregoing step 104.

[00151] Step 505: If a size of capability information of the UE exceeds a maximum size of a PDCP SDU, the UE indicates, by using a connection

configuration complete message, related information that the size of the capability

information of the UE exceeds the maximum size of the PDCP SDU.

[00152] In this step, the related information that the size of the capability information of the UE exceeds the maximum size of the PDCP SDU is the foregoing

first information.

[00153] Step 506: The network-side device transmits capability request information to the UE.

[00154] Correspondingly, before or when requesting the UE to report the

capability information, the network-side device may configure an RRC message

segmentation function for the UE based on the indication information in step 505, so

as to indicate the UE to report all the capability information of the terminal device in

an RRC message segmentation manner. If the size of the capability information of

the UE exceeds the maximum size of the PDCP SDU, during reporting of the

capability information of the UE, the UE performs RRC message segmentation on

the capability information of the UE for reporting.

[00155] Alternatively, the network-side device may request, based on the

indication information in step 505, the UE to report partial capability information,

and a size of the partial capability information that the UE is requested to report is

less than or equal to the maximum size of the PDCP SDU.

[00156] Step 507: The UE reports capability information of the UE to the network

side based on the request information of the network side.

[00157] In this step, the UE reports the capability information of the UE to the

network side based on the request information of the network side and the reporting

manner.

[00158] Example 2: Indication information that the capability information is excessively large is reported by using a UE capability information message.

[00159] Referring to FIG. 6, the method for processing terminal device capability information provided in this embodiment of this disclosure includes the following

steps.

[00160] Step 601: UE initiates a connection establishment process, initiates a random access process, and transmits an Msgl, where the Msgl carries a preamble

(namely, preamble).

[00161] Step 602: A network-side device transmits, based on the Msgl transmitted by the UE, an Msg2 carrying a random access response (namely, RAR),

[00162] Step 603: The UE transmits the Msg3 based on the resource allocated in

the Msg2.

[00163] This step is the same as the foregoing step 103.

[00164] Step 604: The network-side device transmits an Msg4 of the random

access process to the UE based on the Msg3 transmitted by the UE.

[00165] This step is the same as the foregoing step 104.

[00166] Step 605: After executing a connection configuration message delivered

message to the network side.

[00167] This step is the same as the foregoing step 105.

[00168] Step 606: The network-side device transmits capability request information to the UE.

[00169] This step is the same as the foregoing step 106.

[00170] Step 607: When the UE receives the capability request information from

the network side, if a size of capability information of the UE exceeds a maximum

size of a PDCP SDU, the UE does not report the capability information of the UE,

but indicates, to the network side, related information that the size of the capability

information on the UE exceeds the maximum size of the PDCP SDU.

[00171] In this step, the related information that the size of the capability information of the UE exceeds the maximum size of the PDCP SDU is the foregoing

first information.

[00172] Correspondingly, the network-side device may configure an RRC message segmentation function for the UE based on the indication information in

step 607, so as to indicate the UE to report all the capability information of the

terminal device in an RRC message segmentation manner. If the size of the

capability information of the UE exceeds the maximum size of the PDCP SDU,

during reporting of the capability information of the UE, the UE performs RRC

message segmentation on the capability information of the UE for reporting.

[00173] Alternatively, the network-side device may request, based on the indication information in step 605, the UE to report partial capability information,

less than or equal to the maximum size of the PDCP SDU.

[00174] Optionally, the foregoing step 607 may alternatively be: When the UE

receives the capability request information from the network side, if the size of the

capability information of the UE exceeds the maximum size of the PDCP SDU, the

UE may report the partial capability information of the UE and indicates, to the

network side, related information that the size of the capability information on the

UE exceeds the maximum size of the PDCP SDU.

[00175] Correspondingly, the related information that the size of the capability information of the UE exceeds the maximum size of the PDCP SDU may include at

least one of the following:

indication information that the size of the capability information exceeds

the maximum size of the PDCP SDU;

a total size of the capability information, for example, 10000 bytes;

indication information that there is remaining capability information that

has not been reported;

a size of the remaining capability information that has not been reported,

for example, if the UE has reported 9000-byte capability information and the size of the total capability information is 10000 bytes, the remaining 1000-byte capability information has not been reported by the UE; and indication information that the RRC message segmentation function is supported.

[00176] Specifically, based on the indication information in step 607, the network side may configure the RRC message segmentation function for the UE. If the size

of the capability information of the UE exceeds the maximum size of the PDCP SDU,

during UE capability reporting, the UE performs RRC message segmentation on the

capability information of the UE for reporting.

[00177] Alternatively, based on the indication information in step 607, the

network side may request the UE to report the remaining capability information to

the UE. For example, the network side indicates the UE by using the capability

request information to report the remaining UE capability information, and the UE

reports the remaining UE capability information to the network side after receiving

the request information from the network side. If the size of the remaining capability

information size of the UE still exceeds the maximum size of the PDCP SDU, the

UE may continue to indicate related information that the size of the capability

information exceeds the maximum size of the PDCP SDU.

[00178] Example 3: Indication information that the capability information is

excessively large is reported by using an auxiliary message.

[00179] Referring to FIG. 7, the method for processing terminal device capability information provided in this embodiment of this disclosure includes the following

steps.

[00180] Step 701: UE initiates a connection establishment process, initiates a

random access process, and transmits an Msgl, where the Msgl carries a preamble

(namely, preamble).

[00181] Step 702: A network-side device transmits, based on the Msgl

transmitted by the UE, an Msg2 carrying a random access response (namely, RAR),

[00182] Step 703: The UE transmits the Msg3 based on the resource allocated in the Msg2.

[00183] This step is the same as the foregoing step 103.

[00184] Step 704: The network-side device transmits an Msg4 of the random access process to the UE based on the Msg3 transmitted by the UE.

[00185] This step is the same as the foregoing step 104.

[00186] Step 705: After executing a connection configuration message delivered by the network-side device, the UE feeds back a connection configuration complete

message to the network side.

[00187] This step is the same as the foregoing step 105.

[00188] Step 706: If a size of capability information of the UE exceeds a maximum size of a PDCP SDU, the UE reports an auxiliary message to the network

side to indicate related information that the size of the capability information of the

UE exceeds the maximum size of the PDCP SDU.

[00189] Correspondingly, before or when requesting the UE to report the

capability information, the network-side device may configure an RRC message

segmentation function for the UE based on the indication information in step 706. If

the size of the capability information of the UE exceeds the maximum size of the

PDCP SDU, during UE capability reporting, the UE performs RRC message

segmentation on the capability information of the UE for reporting.

[00190] Alternatively, the network-side device may request, based on the

indication information in step 706, the UE to report partial capability information,

less than or equal to the maximum size of the PDCP SDU.

[00191] According to the method for processing terminal device capability

information provided in this embodiment of this disclosure, through negotiation

between the UE and the network side, the UE may report the capability information

of the UE to the network side when the size of the capability information to be

reported by the UE exceeds the maximum size of the PDCP SDU.

[00192] Referring to FIG. 8, FIG 8 is a structural diagram of a terminal device according to an embodiment of this disclosure. As shown in FIG. 8, the terminal

device 800 includes:

a transmitting module 800, configured to transmit a first message to a

network-side device when a size of capability information of the terminal device is

greater than a maximum size of a PDCP SDU.

[00193] The first message includes first information, and the first information includes information used for indicating that the size of the capability information of

the terminal device is greater than the maximum size of the PDCP SDU.

[00194] Optionally, the terminal device further includes:

a transmitting module, configured to transmit the capability information

of the terminal device by using at least one PDCP SDU based on a reporting manner.

[00195] Capability information carried by any one of the at least one PDCP SDU

is partial capability information of the terminal device.

[00196] Optionally, the reporting manner includes:

reporting all capability information of the terminal device in a radio

resource control RRC message segmentation manner; or

reporting partial capability information of the terminal device.

[00197] Optionally, the terminal device further includes:

a receiving module, configured to: before the capability information of

the terminal device is transmitted by using the at least one PDCP SDU based on the

reporting manner, receive a second message transmitted by the network-side device,

where the second message includes second information, and the second information

is used to indicate the reporting manner.

[00198] Optionally, the first message is a connection configuration complete

message; or

the first message is a message that is transmitted in response to capability

request information transmitted by the network-side device; or

the first message is an auxiliary message transmitted by the terminal

device to the network-side device.

[00199] Optionally, when the first message is a message that is transmitted in response to the capability request information transmitted by the network-side device,

the first message further carries the partial capability information of the terminal

device.

[00200] Optionally, the first information further includes at least one of the following:

the size of the capability information of the terminal device;

information used for indicating that the terminal device supports radio

resource control RRC message segmentation;

information used for indicating that the terminal device has remaining

capability information that has not been reported; and

a size of the remaining capability information, where the remaining

information in the capability information of the terminal device.

[00201] Optionally, the first information further includes at least one of the

following:

the size of the capability information of the terminal device; and

information used for indicating that the terminal device supports RRC

message segmentation.

[00202] Optionally, the second message further carries capability request

information.

[00203] The terminal device 800 provided in this embodiment of this disclosure is capable of implementing various processes implemented by the terminal device in

the method embodiments of FIG. 3 to FIG. 7. To avoid repetition, details are not

described herein again.

[00204] According to the terminal device 800 provided in this embodiment of this

disclosure, the transmitting module 800 is configured to transmit the first message to

[00205] Referring to FIG. 9, FIG. 9 is a structural diagram of a network-side device according to an embodiment of this disclosure. As shown in FIG. 9, the network-side device 900 includes: a first receiving module 901, configured to receive a first message transmitted by a terminal device.

[00206] The first message includes first information, and the first information includes information used for indicating that a size of capability information of the terminal device is greater than a maximum size of a PDCP SDU.

[00207] Optionally, the network-side device further includes: a second receiving module, configured to receive capability information of the terminal device that is transmitted by the terminal device by using at least one PDCP SDU based on a reporting manner.

[00208] Capability information carried by any one of the at least one PDCP SDU is partial capability information of the terminal device.

[00209] Optionally, the reporting manner includes: reporting all capability information of the terminal device in a radio resource control RRC message segmentation manner; or reporting partial capability information of the terminal device.

[00210] Optionally, the network-side device further includes: a first transmitting module, configured to transmit a second message to the terminal device, where the second message includes second information, and the second information is used to indicate the reporting manner.

[00211] Optionally, the first message is a connection configuration complete message; or

the first message is an auxiliary message transmitted by the terminal

device to the network-side device.

[00212] Optionally, the network-side device further includes: a second transmitting module, configured to transmit capability request

information to the terminal device before the first message transmitted by the

terminal device is received.

[00213] The first message is a message transmitted in response to the capability request information.

[00214] Optionally, the first message further carries partial capability information of the terminal device.

[00215] Optionally, the first information further includes at least one of the

following:

the size of the capability information of the terminal device;

information used for indicating that the terminal device supports radio

resource control RRC message segmentation;

information used for indicating that the terminal device has remaining

capability information that has not been reported; and

a size of the remaining capability information, where the remaining

information in the capability information of the terminal device.

[00216] Optionally, the first information further includes at least one of the

following:

the size of the capability information of the terminal device; and

information used for indicating that the terminal device supports radio

resource control RRC message segmentation.

[00217] Optionally, the second message further carries capability request information.

[00218] The network-side device 900 provided in this embodiment of this disclosure is capable of implementing various processes implemented by the network-side device in the method embodiments of FIG. 3 to FIG. 7. To avoid repetition, details are not described herein again.

[00219] According to the network-side device 900 provided in this embodiment of this disclosure, the first receiving module 901 is configured to receive the first message that is transmitted by the terminal device, where the first message includes the first information, and the first information includes the information used for indicating that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, so that when the size of the capability information that needs to be reported by the UE exceeds the maximum size of the PDCP SDU, the network-side device is indicated that the size of the capability information of the terminal device is greater than the maximum size of the PDCP SDU, thereby standardizing the processing manner related to the capability information of the UE when the size of the capability information that needs to be reported by the UE exceeds the maximum size of the PDCP SDU.

[00220] FIG. 10 is a structural diagram of another terminal device according to an embodiment of this disclosure. Referring to FIG. 10, the terminal device 1000 includes but is not limited to components such as a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010, and a power supply 1011. Persons skilled in the art can understand that a structure of the terminal device shown in FIG. 10 does not constitute any limitation on the terminal device, and the terminal device may include more or fewer components than those shown in the figure, or a combination of some components, or the components disposed differently. In this embodiment of this disclosure, the terminal device includes but is not limited to a mobile phone, a tablet computer, a laptop computer, a palmtop computer, an in-vehicle terminal, a wearable device, a pedometer, and the like.

[00221] The radio frequency unit 1001 is configured to transmit a first message to a network-side device when a size of capability information of the terminal device is

greater than a maximum size of a PDCP SDU, where the first message includes first

information, and the first information includes information used for indicating that

maximum size of the PDCP SDU.

[00222] In this embodiment of this disclosure, when the size of the capability information that needs to be reported by the UE exceeds the maximum size of the

PDCP SDU, the network-side device is indicated that the size of the capability

information of the terminal device is greater than the maximum size of the PDCP

SDU, thereby standardizing the processing manner related to the capability

reported by the UE exceeds the maximum size of the PDCP SDU.

[00223] Optionally, the radio frequency unit 1001 is further configured to:

transmit the capability information of the terminal device by using at

least one PDCP SDU based on a reporting manner.

[00224] Capability information carried by any one of the at least one PDCP SDU

is partial capability information of the terminal device.

[00225] Optionally, the reporting manner includes:

reporting all capability information of the terminal device in a radio

resource control RRC message segmentation manner; or

reporting partial capability information of the terminal device.

[00226] Optionally, the radio frequency unit 1001 is further configured to:

before the capability information of the terminal device is transmitted by

using the at least one PDCP SDU based on the reporting manner, receive a second

message transmitted by the network-side device, where the second message includes

second information, and the second information is used to indicate the reporting

manner.

[00227] Optionally, the first message is a connection configuration complete

message; or the first message is a message that is transmitted in response to capability request information transmitted by the network-side device; or the first message is an auxiliary message transmitted by the terminal device to the network-side device.

[00228] Optionally, when the first message is a message that is transmitted in response to the capability request information transmitted by the network-side device,

device.

[00229] Optionally, the first information further includes at least one of the following:

the size of the capability information of the terminal device;

information used for indicating that the terminal device supports radio

resource control RRC message segmentation;

information used for indicating that the terminal device has remaining

capability information that has not been reported; and

a size of the remaining capability information, where the remaining

information in the capability information of the terminal device.

[00230] Optionally, the first information further includes at least one of the

following:

the size of the capability information of the terminal device; and

information used for indicating that the terminal device supports RRC

message segmentation.

[00231] Optionally, the second message further carries capability request information.

[00232] It should be understood that in this embodiment of this disclosure, the

radio frequency unit 1001 may be configured to: receive and transmit signals in an

information receiving/sending process or a call process; and specifically, after

receiving downlink data from a base station, send the downlink information to the

processor 1010 for processing, and in addition, send uplink data to the base station.

Generally, the radio frequency unit 1001 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 1001 may also communicate with a network and other devices via a wireless communications system.

[00233] The terminal device provides a user with wireless broadband internet access through the network module 1002, for example, helping the user to transmit or receive an e-mail, to browse a web page, or to access streaming media.

[00234] The audio output unit 1003 may convert audio data received by the radio frequency unit 1001 or the network module 1002 or stored in the memory 1009 into an audio signal and output the audio signal as a sound. Furthermore, the audio output unit 1003 may also provide audio output (for example, a call signal received sound or a message received sound) related to a specific function performed by the terminal device 1000. The audio output unit 1003 includes a speaker, a buzzer, a receiver, and the like.

[00235] The input unit 1004 is configured to receive an audio or video signal. The input unit 1004 may include a graphics processing unit (Graphics Processing Unit, GPU) 10041 and a microphone 10042. The graphics processing unit 10041 processes image data of a still picture or video obtained by an image capture apparatus (such as a camera) in a video capture mode or an image capture mode. A processed image frame may be displayed on the display unit 1006. The image frame processed by the graphics processing unit 10041 may be stored in the memory 1009 (or another storage medium) or be sent by the radio frequency unit 1001 or the network module 1002. The microphone 10042 is capable of receiving sounds and processing such sounds into audio data. The processed audio data may be converted in a telephone call mode into a format that can be transmitted by the radio frequency unit 1001 to a mobile communications base station, for outputting.

[00236] The terminal device 1000 may further include at least one sensor 1005, for example, an optical sensor, a motion sensor, and other sensors. Specifically, the optical sensor may include an ambient light sensor and a proximity sensor. The ambient light sensor may adjust luminance of the display panel 10061 based on brightness of ambient light, and the proximity sensor may turn off the display panel

10061 and/or backlight when the terminal device 1000 moves close to an ear. As a

type of motion sensor, an accelerometer sensor can detect magnitudes of

accelerations in all directions (usually three axes), can detect a magnitude and a

direction of gravity when the mobile phone is in a static state, and can be applied to

posture recognition (such as screen switching between portrait and landscape, related

games, and magnetometer posture calibration) of the terminal device, functions

related to vibration recognition (such as pedometer and tapping), and the like. The

sensor 1005 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a

molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an

infrared sensor, and the like. Details are not described herein.

[00237] The display unit 1006 is configured to display information input by the user or information provided to the user. The display unit 1006 may include a display

panel 10061, and the display panel 10061 may be configured in a form of a liquid

crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode

(Organic Light-Emitting Diode, OLED), or the like.

[00238] The user input unit 1007 may be configured to receive input digit or

character information and generate key signal input related to user setting and

function control of the terminal device. Specifically, the user input unit 1007 may

include a touch panel 10071 and other input devices 10072. The touch panel 10071

is also referred to as a touchscreen and can collect a touch operation (such as an

operation performed by the user on the touch panel 10071 or near the touch panel

10071 with a finger or by using any proper object or accessory such as a stylus) of

the user on or near the touch panel 10071. The touch panel 10071 may include two

parts: a touch detection apparatus and a touch controller. The touch detection

apparatus detects a touch azimuth of a user, detects a signal brought by a touch

operation, and transmits the signal to the touch controller. The touch controller

receives touch information from the touch detection apparatus, converts the touch

information into touchpoint coordinates, and sends the touchpoint coordinates to the

processor 1010, and can receive a command sent by the processor 1010 and execute the command. In addition, the touch panel 10071 may be implemented in a plurality of forms, for example, as a resistive, capacitive, infrared, or surface acoustic wave touch panel. In addition to the touch panel 10071, the user input unit 1007 may further include other input devices 10072. Specifically, the other input devices 10072 may include but are not limited to a physical keyboard, a function key (such as a volume control key or a switch key), a trackball, a mouse, and a joystick. Details are not described herein.

[00239] Further, the touch panel 10071 may cover the display panel 10061. When detecting a touch operation on or near the touch panel 10071, the touch panel 10071

transmits the touch operation to the processor 1010 to determine a type of a touch

event. Then, the processor 1010 provides a corresponding visual output on the

display panel 10061 based on the type of the touch event. Although in FIG. 10, the

touch panel 10071 and the display panel 10061 act as two independent parts to

implement input and output functions of the terminal device, in some embodiments,

the touch panel 10071 and the display panel 10061 may be integrated to implement

the input and output functions of the terminal device. This is not specifically limited

herein.

[00240] The interface unit 1008 is an interface between an external apparatus and

the terminal device 1000. For example, the external apparatus may include a wired

or wireless headset port, an external power supply (or a battery charger) port, a wired

or wireless data port, a memory port, a port for connecting an apparatus with an

identification module, an audio input/output (I/O) port, a video I/O port, an earphone

port, and the like. The interface unit 1008 may be configured to: receive an input (for

example, data information or power) from an external apparatus, and transmit the

received input to one or more elements in the terminal device 1000, or may be

configured to transmit data between the terminal device 1000 and the external

apparatus.

[00241] The memory 1009 may be configured to store software programs and

various data. The memory 1009 may primarily include a program storage area and a

data storage area. The program storage area may store an operating system, an application (such as an audio play function and an image play function) required by at least one function, and the like. The data storage area may store data (such as audio data and a phone book) created based on use of the mobile phone. In addition, the memory 1009 may include a high-speed random access memory, and may further include a non-volatile memory such as a disk storage device, a flash memory device, or another volatile solid-state storage device.

[00242] The processor 1010 is a control center of the terminal device, and is connected to all components of the terminal device by using various interfaces and

lines. By running or executing a software program and/or module that is stored in the

memory 1009 and calling data stored in the memory 1009, the processor 1010

executes various functions of the terminal device and processes data, so as to

perform overall monitoring on the terminal device. The processor 1010 may include

one or more processing units. Optionally, an application processor and a modem

processor may be integrated in the processor 1010. The application processor

primarily processes an operating system, user interfaces, application programs, and

the like. The modem processor primarily processes radio communication. It can be

understood that the modem processor may alternatively be not integrated in the

processor 1010.

[00243] The terminal device 1000 may further include a power supply 1011 (such as a battery) that supplies power to components. Optionally, the power supply 1011

may be logically connected to the processor 1010 through a power management

system. In this way, functions such as charge management, discharge management,

and power consumption management are implemented by using the power

management system.

[00244] In addition, the terminal device 1000 includes some functional modules

that are not shown, details of which are not described herein.

[00245] Optionally, an embodiment of this disclosure further provides a terminal

device, including a processor 1010, a memory 1009, a computer program stored in

the memory 1009 and capable of running on the processor 1010. When the computer

program is executed by the processor 1010, the processes of the method for processing terminal device capability information embodiment are implemented, with the same technical effect achieved. To avoid repetition, details are not described herein again.

[00246] Referring to FIG. 11, FIG. 11 is a structural diagram of another network-side device according to an embodiment of this disclosure. As shown in FIG. 11, the network-side device 1100 includes: a processor 1101, a memory 1102, a bus interface 1103, and a transceiver 1104, where the processor 1101, the memory 1102, and the transceiver 1104 are all connected to the bus interface 1103.

[00247] In this embodiment of this disclosure, the network-side device 1100 further includes a computer program stored in the memory 1102 and capable of running on the processor 1101. When the computer program is executed by the processor 1101, the following step is implemented: receiving a first message transmitted by a terminal device.

[00248] The first message includes first information, and the first information includes information used for indicating that a size of capability information of the terminal device is greater than a maximum size of a PDCP SDU.

[00249] Optionally, when the computer program is executed by the processor 1101, the following step is further implemented: receiving capability information of the terminal device that is transmitted by the terminal device by using at least one PDCP SDU based on a reporting manner.

[00250] Capability information carried by any one of the at least one PDCP SDU is partial capability information of the terminal device.

[00251] Optionally, the reporting manner includes: reporting all capability information of the terminal device in a radio resource control RRC message segmentation manner; or reporting partial capability information of the terminal device.

[00252] Optionally, when the computer program is executed by the processor 1101, the following step is further implemented: before the capability information of the terminal device that is transmitted by the terminal device by using the at least one PDCP SDU based on the reporting manner is received, transmitting a second message to the terminal device, where the second message includes second information, and the second information is used to indicate the reporting manner.

[00253] Optionally, the first message is a connection configuration complete message; or the first message is an auxiliary message transmitted by the terminal device to the network-side device.

[00254] Optionally, before the receiving the first message transmitted by the terminal device, the method further includes: transmitting capability request information to the terminal device.

[00255] The first message is a message transmitted in response to the capability request information.

[00256] Optionally, the first message further carries partial capability information of the terminal device.

[00257] Optionally, the first information further includes at least one of the following: the size of the capability information of the terminal device; information used for indicating that the terminal device supports radio resource control RRC message segmentation; information used for indicating that the terminal device has remaining capability information that has not been reported; and a size of the remaining capability information, where the remaining capability information is capability information other than the reported capability information in the capability information of the terminal device.

[00258] Optionally, the first information further includes at least one of the following: the size of the capability information of the terminal device; and information used for indicating that the terminal device supports radio resource control RRC message segmentation.

[00259] Optionally, the second message further carries capability request information.

[00260] Optionally, an embodiment of this disclosure further provides a network-side device, including a processor 1101, a memory 1102, a computer

program stored in the memory 1102 and capable of running on the processor 1101.

When the computer program is executed by the processor 1101, the processes of the

method for processing terminal device capability information embodiment are

implemented, with the same technical effect achieved. To avoid repetition, details are

not described herein again.

[00261] An embodiment of this disclosure further provides a computer-readable

storage medium, where a computer program is stored in the computer-readable

storage medium. When the computer program is executed by a processor, processes

of the foregoing embodiment of the method for processing terminal device capability

information can be implemented. To avoid repetition, details are not described herein

again. The computer-readable storage medium is, for example, a read-only memory

(Read-Only Memory, ROM for short), a random access memory (Random Access

Memory, RAM for short), a magnetic disk, or an optical disc.

[00262] It should be noted that the terms "include", "comprise", or any of their

variants in this specification are intended to cover a non-exclusive inclusion, so that

a process, a method, an article, or an apparatus that includes a list of elements not

only includes those elements but also includes other elements that are not expressly

listed, or further includes elements inherent to such process, method, article, or

apparatus. In absence of more restrictions, an element preceded by "includes a..."

does not preclude the existence of other identical elements in the process, method,

article, or apparatus that includes the element.

[00263] According to the foregoing description of the implementations, a person

skilled in the art may clearly understand that the methods in the foregoing

embodiments may be implemented by using software in combination with a

necessary common hardware platform, and certainly may alternatively be

implemented by using hardware. However, in most cases, the former is a preferred implementation. Based on such an understanding, the technical solutions of this disclosure essentially, or the part contributing to the prior art may be implemented in a form of a software product. The software product is stored in a storage medium

(for example, a ROM/RAM, a magnetic disk, or an optical disc), and includes

several instructions for instructing a terminal (which may be a mobile phone, a

computer, a server, an air conditioner, a network device, or the like) to perform the

method described in the embodiments of this disclosure.

[00264] The foregoing describes the embodiments of this disclosure with

reference to the accompanying drawings. However, this disclosure is not limited to

the foregoing specific implementation manners. The foregoing specific

implementation manners are merely illustrative rather than restrictive. As instructed

by this disclosure, persons of ordinary skill in the art may develop many other

manners without departing from principles of this disclosure and the protection

scope of the claims, and all such manners fall within the protection scope of this

disclosure.

Claims

What is claimed is: 1. A method for processing terminal device capability information, performed

by a terminal device and comprising:

receiving a second message transmitted by a network-side device, wherein the

second message comprises second information, the second information is used to

indicate a reporting manner, and the reporting manner comprises reporting all

capability information of the terminal device in a radio resource control (RRC)

message segmentation manner;

transmitting a first message to the network-side device when a size of capability

information of the terminal device is greater than a maximum size of a packet data

aggregation protocol PDCP service data unit SDU, wherein the first message

comprises first information, and the first information comprises information used for

indicating that the terminal device has remaining capability information that has not

been reported;

transmitting the capability information of the terminal device by using at least

one PDCP SDU based on the reporting manner, wherein capability information

carried by any one of the at least one PDCP SDU is partial capability information of

the terminal device.
2. The method according to claim 1, wherein the second message further carries

capability request information.
3. The method according to claim 1, wherein

the first message is a connection configuration complete message; or

the first message is a message that is transmitted in response to capability

request information transmitted by the network-side device; or

the first message is an auxiliary message transmitted by the terminal device to

the network-side device.
4. The method according to claim 3, wherein when the first message is a message that is transmitted in response to the capability request information transmitted by the network-side device, the first message further carries partial capability information of the terminal device.
5. The method according to any one of claims 1 to 4, wherein the first

information further comprises at least one of the following:

the size of the capability information of the terminal device;

information used for indicating that the terminal device supports radio resource

control RRC message segmentation; and

a size of the remaining capability information, wherein the remaining capability

information is capability information other than the reported capability information

in the capability information of the terminal device.
6. The method according to any one of claims 1 to 3, wherein the first

information further comprises at least one of the following:

the size of the capability information of the terminal device; and

information used for indicating that the terminal device supports RRC message

segmentation.
7. A method for processing terminal device capability information, performed

by a network-side device and comprising:

receiving a first message transmitted by a terminal device, wherein the first

message comprises first information, and the first information comprises information

used for indicating that the terminal device has remaining capability information that

has not been reported;

receiving capability information of the terminal device that is transmitted by the

terminal device by using at least one PDCP SDU based on a reporting manner,

wherein capability information carried by any one of the at least one PDCP SDU is

partial capability information of the terminal device;

before the receiving capability information of the terminal device that is

transmitted by the terminal device by using at least one PDCP SDU based on a

reporting manner, the method further comprises:

transmitting a second message to the terminal device, wherein the second message comprises second information, the second information is used to indicate the reporting manner, and the reporting manner comprises reporting all capability information of the terminal device in a radio resource control (RRC) message segmentation manner.
8. The method according to claim 7, wherein the second message further carries capability request information.
9. The method according to claim 7, wherein the first message is a connection configuration complete message; or the first message is an auxiliary message transmitted by the terminal device to the network-side device.
10. The method according to claim 7, wherein before the receiving a first message transmitted by a terminal device, the method further comprises: transmitting capability request information to the terminal device, wherein the first message is a message transmitted in response to the capability request information.
11. The method according to claim 10, wherein the first message further carries partial capability information of the terminal device.
12. The method according to any one of claims 7 to 11, wherein the first information further comprises at least one of the following: the size of the capability information of the terminal device; information used for indicating that the terminal device supports radio resource control RRC message segmentation; and a size of the remaining capability information, wherein the remaining capability information is capability information other than the reported capability information in the capability information of the terminal device.
13. The method according to any one of claims 7 to 10, wherein the first information further comprises at least one of the following: the size of the capability information of the terminal device; and information used for indicating that the terminal device supports radio resource control RRC message segmentation.
14. A terminal device, comprising:

a receiving module, configured to, receive a second message transmitted by a

network-side device, wherein the second message comprises second information, the

second information is used to indicate a reporting manner, and the reporting manner

comprises reporting all capability information of the terminal device in a radio

resource control (RRC) message segmentation manner;

a transmitting module, configured to transmit a first message to a network-side

device when a size of capability information of the terminal device is greater than a

maximum size of a packet data aggregation protocol PDCP service data unit SDU,

wherein the first message comprises first information, and the first information

comprises information used for indicating that the terminal device has remaining

capability information that has not been reported;

a transmitting module, configured to transmit the capability information of the

terminal device by using at least one PDCP SDU based on the reporting manner,

wherein capability information carried by any one of the at least one PDCP SDU is

partial capability information of the terminal device.
15. The terminal device according to claim 14, wherein the first information

further comprises at least one of the following:

the size of the capability information of the terminal device;

information used for indicating that the terminal device supports radio resource

control RRC message segmentation; and

a size of the remaining capability information, wherein the remaining capability

information is capability information other than the reported capability information

in the capability information of the terminal device.
16. A network-side device, comprising:

a first receiving module, configured to receive a first message transmitted by a

terminal device; wherein the first message comprises first information, and the first

information comprises information used for indicating that the terminal device has

remaining capability information that has not been reported;

a second receiving module, configured to receive capability information of the terminal device that is transmitted by the terminal device by using at least one PDCP

SDU based on a reporting manner, wherein capability information carried by any

one of the at least one PDCP SDU is partial capability information of the terminal

device;

a first transmitting module, configured to, before receiving capability

information of the terminal device that is transmitted by the terminal device by using

at least one PDCP SDU based on a reporting manner, transmit a second message to

the terminal device, wherein the second message comprises second information, the

second information is used to indicate the reporting manner, and the reporting

manner comprises reporting all capability information of the terminal device in a

radio resource control, RRC, message segmentation manner.
17. The network-side device according to claim 16, wherein the first

information further comprises at least one of the following:

the size of the capability information of the terminal device;

information used for indicating that the terminal device supports radio resource

control RRC message segmentation; and

a size of the remaining capability information, wherein the remaining capability

information is capability information other than the reported capability information

in the capability information of the terminal device.
18. A terminal device, comprising a processor, a memory, and a program stored

in the memory and capable of running on the processor, wherein when the program

is executed by the processor, the steps of the method for processing terminal device

capability information according to any one of claims 1 to 6 are implemented.
19. A network-side device, comprising a processor, a memory, and a program

stored in the memory and capable of running on the processor, wherein when the

program is executed by the processor, the steps of the method for processing

terminal device capability information according to any one of claims 7 to 13 are

implemented.
20. A computer-readable storage medium, wherein a computer program is

stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for processing terminal device capability information according to any one of claims 1 to 6 are implemented, or the steps of the method for processing terminal device capability information according to any one of claims 7 to 13 are implemented.